General Conditions for Lepton Flavour Violation at Tree- and 1-Loop Level

Physics – High Energy Physics – High Energy Physics - Phenomenology

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

31 pages, 2 figures

Scientific paper

10.1103/PhysRevD.77.076005

In this work, we compile the necessary and sufficient conditions a theory has to fulfill in order to ensure general lepton flavour conservation, in the spirit of the Glashow-Weinberg criteria for the absence of flavour-changing neutral currents. At tree-level, interactions involving electrically neutral and doubly charged bosons are investigated. We also investigate flavour changes at 1-loop level. In all cases we find that the essential theoretical requirements can be reduced to a few basic conditions on the particle content and the coupling matrices. For 1-loop diagrams, we also investigate how exactly a GIM-suppression can occur that will strongly reduce the rates of lepton flavour violating effects even if they are in principle present in a certain theory. In all chapters, we apply our criteria to several models which can in general induce lepton flavour violation, e.g. LR-symmetric models or the MSSM. In the end we give a summarizing table of the obtained results, thereby demonstrating the applicability of our criteria to a large class of models beyond the Standard Model.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

General Conditions for Lepton Flavour Violation at Tree- and 1-Loop Level does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with General Conditions for Lepton Flavour Violation at Tree- and 1-Loop Level, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and General Conditions for Lepton Flavour Violation at Tree- and 1-Loop Level will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-255930

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.